Lap and finger play in infancy, implications for ego development.
D000223:Adaptation, Psychological; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004532:Ego; D005247:Feeding Behavior; D005260:Female; D006225:Hand; D006257:Head; D006801:Humans; D007223:Infant; D008297:Male; D008425:Maternal Behavior; D009034:Mother-Child Relations; D009040:Motion Pictures; D009055:Mouth; D009769:Object Attachment; D010988:Play and Playthings; D011574:Psychoanalytic Theory; D012919:Social Behavior; D014785:Vision, Ocular